Well designed props make a yoga practice better. A slippery yoga mat can just about ruin the calming affects of your down dog. Maybe a patented, smartly designed yoga mat signed by a celebrity would make your practice stellar? Well here's an opportunity to find out.

YogaForce will be auctioning off two of their uniquely designed yoga mats, each signed by a celebrity, on eBay to benefit the Skin Cancer Foundation. Tobey Maguire singed one of these fancy yet durable mats, and Jennifer Garner signed the other.

The mats are printed with a grid to give you visual guidance on your alignment, plus there is a built in carrying strap. You just roll up the mat, and sling the strap around your shoulder and you are good to go. It weighs only 4 pounds. The mat is sturdy and since it is made from recycled PVC it will last forever and never end up in a landfill. Which is great because if a celeb signs your yoga mat you will want to practice on it forever. Another thing I love about these mats, they are not one bit slippy.

The eBay auction begins May 8th, so mark your calendars. You can always buy a mat directly from YogaForce for $82.

So help your yoga practice and help prevent skin cancer since the entire proceeds go towards the Skin Cancer Foundation, at the same time. You know I like multi-tasking!!!